A) 51 B) 60 C) 23 D) 50
A) 1 B) 17 C) 7 D) 3
A) 103 B) 9 C) 45 D) 5
A) 3 B) 4 C) 33 D) 15
A) Halogens B) Alkaline Earth Metals C) Transition Metals D) Noble Gases E) Alkali Metals
A) 14 B) 2 C) 7 D) 14.007
A) 56 B) 2 C) 137 D) 6
A) 7 B) 2 C) 1 D) 6
A) Tellurium is a solid metalloid. B) Mercury is a solid metal. C) Phosphorus is a non-metal gas. D) Chlorine is a liquid non-metal.
A) 5 B) 6 C) 42 D) 96
A) 7 B) 3 C) 4 D) 2
A) proton/+, electron/-, neutron/uncharged B) proton/+, neutron/-, electron/no charge C) proton/-, electron/+, neutron/no charge D) proton/+, electron/neutral, neutron/-
A) protons and orbits B) neutrons and electrons C) protons and electrons D) protons and neutrons
A) Carbon and Boron B) Phosphorus and Silicon C) Mercury and Thallium D) Argon and Krypton
A) electrons orbit totally randomly around the nucleus B) atoms are tiny solid spheres C) the atom is a positively charged sphere with electrons embedded in it D) the atom is mostly empty space
A) nucleus B) period C) group D) region
A) Beryllium B) Chlorine C) Lithium D) Magnesium
A) number of protons B) period number C) group number D) number of neutrons
A) the same as the number of energy levels B) the mass number minus the atomic number C) the same as the number of electrons D) greater than the mass number
A) State of Matter B) Number of Neutrons C) Group Number D) Period Number
A) Francium B) Manganese C) Carbon D) Nitrogen
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons.
A) by adding protons B) By adding or losing electrons C) by adding electrons D) by losing protons
A) by losing electrons B) by adding electrons C) by losing protons D) by adding protons
A) by losing protons B) by adding protons C) by losing electrons D) by adding electrons
A) by adding electrons B) by adding neutrons C) by adding or losing neutrons D) by adding protons
A) difference between the atomic and mass number B) same as the mass number C) mass number divided by 2 D) same as the atomic number
A) the same as the atomic number B) the same as the mass number C) the difference between the mass and atomic number D) the same as the number of neutrons
A) Hg and C B) Mg and F C) B and O D) Na and Li
A) Li and Po B) Ba and Ra C) Mg and Cl D) F and At
A) The alkali metals B) The halogens C) The transition metals D) The noble gases E) The alkali earth metals
A) The transition metals B) The alkali metals C) The halogens D) The noble gases
A) 4 B) 1 C) 8 D) 17 E) 18
A) how many protons there are B) how reactive they are C) how many electron levels there are D) how many electrons there are
A) how many valence electrons the atom has B) the number of neutrons C) the number of protons D) how many electrons the atom has
A) Iron B) Mercury C) Silver D) Fluorine E) Sodium
A) F B) Li C) Al D) H E) Au
A) Mg B) Cs C) I D) Li E) Al
A) the number of neutrons B) the number of protons C) the number of electrons
A) Dalton B) Lewis C) Bohr D) Mendeleev E) Newton |